Car-roof.



R. W. BURIETT.`

om BOOP. APPLICATION FILED MAY23, 1912.

1,083,240. l f Patented Dec.3o,1913.

Fig-l.

4 @1w/if l noms raus, In: Lm'n.. wsnmamn. D

RICHARD WEBB BURNIETT, 0F MONTREAL, QUEBEC, CANADA. i

CAR-ROOF.

Specication of Letters Patent.

Patented Deaeaieis.

Application led May 23, 1912. Serial No. 699,230.

To all whom itmay concern,

Be it known that I, RICHARD WEBB BUR- NE'r'r, residing at the city of Montreal, Province of Quebec, Dominion of Canada, have invented certain new and useful Improvements in Car-Roofs; and I do hereby declare that the following is a full, clear, and exact description of the same.

M y invention relates to all metal car roofs, and it has for its object to provide a roof of this type which will be practically self sustaining and comprise minimum parts.

To this end the invention may be vsaid briefly to consist of 'a roof comprising roof sheets with upwardly turned side edges inclosed by members of inverted U cross-section, the edges of the sheets being made self sustaining by being rigidly united.

For full comprehension, however, of my invention reference must be had to the accompanying drawings forming a part of this specification in which similar reference charj acters indicate the same parts, and wherein:

Figure 1 is a transverse vertical sectional view of a roof constructed according to my invention, partly broken away, the sectional View being taken on a plane indicated by line A A Fig. 3. Figs. 2 and Beare enlarged detail sectional views taken on lines B B Fig. 3 and C C Fig. 2 respectively; and Figsd and 5 are similar views to Figs. 3 and 2 respectively, illustrating a modification.

The roof-sheets' are indicated at. b, and the members of U-cross section at o, such members -preferably consisting of carlines with ianged edges el. The roof-,sheets have their side edges 'turned up as at e (Figs. 3 and Lt) and `curved transversely to the car as shown at f Fig. 1. lThe turned up edges are secured together thus imparting thereto suficient rigidity to be self sustaining, the means of connection being preferably rivets g. The carlines sustain the tops of the car sides and the latter sustain the roof-sheets the arched form of which co-aets with the rivets in contributing the required rigidityto the sheets. The riveted edges of the sheets may be offset and overlapped and the overlapped portions riveted if desired as shown in Figs. 4 and 5 without departing from the spirit of my invention. The purpose of the carlines is to relatively brace the top of the sides of the car body and at the same time provide a water tight cover4 for the joint between the roof-sheets and an effective support for the running board saddle, all of which purposes are common to roofs disclosed Aand claimed in earlier patent`applications of mine and the specific construction and particular relation of these carlines are therefore not claimed herein.

What I claim is as follows 1. In a car roof, the combination with carlines of inverted U-form, of roofing sheets having upturned side edges, saidupturned side edges being-secured together and said inverted U-form carlines being independent ofy the roof sheets and enveloping said upturned side edges.

2. In a car roof, vthe combination with carlines of inverted U-form, of roof sheets having overlapping upwardly-offset side edges secured together, said carlines being independent ofv said roof sheets andenveloping the overlappingside edges thereof.

3. In a car roof, the combination with roof sheets having their adjacent side edges secured together, of carlines positioned .to form a weather proofing means for said side edges, said earlines jbeing entirely independent of the roof sheets. j

4. In a car roof, the 'combination with carlines' forming connection between the top and the side of the car body, of roof sheets having their adjacent edges secured together, said roof sheets being independently movable' relative to the carlines, said carlines being positioned to form weather proofing means for the adjacent edges of the roof sheets.

In testimony whereof I have signed my I name to this specification in the presence of two witnesses.l

Montreal, May 16th, 1912.

RICHARD WEBB BURNETT. IVitnesses E. R. Pir'rs, GORDON G. COOKE.

Copies of this patent may be'obtained for ve cents each, by addressing the Commissioner of Patei, Washington, ID. G. 

